Process and apparatus for treating inked documents



July 14, 1925.

E. BELIN PROCESS AND APPARATUS FOR TREATING INKED DOCUMENTS Filed Nov.20, 1923 2 Sheets-Sheet l July 14, 1925.

4 E. BELIN PROCESS AND APPARATUS FOR TREATING INKED DOCUMENTS Fzled Nov.20, 1923 2 Sheets-Sheet 2 Patented July 14, 1925.

" U ITE STATEISPATETNT, QFIFIICE,

ZEDOUARD BELIN, 01F PARIS, IERALIBTCIFJv rnoonss AND. AIPPARATUS FOB'rREAiriNG'rNKnn DOCUMENTS.

Application fiIed November 20, 1923. 7 Serial 1V0. 695,916. I

T 0 all whom it may concern:

Be it knownthat I, EDOUARD BELiN, a citizen of the Republic of France,residing at Rueil, 272 Avenue-de Paris, Seine et Oise, Paris, France,have invented certain new and useful Improvements in Processes andApparatus for Treating Inked Documents, of which the following is aspecification. 7

In order that a written document would be suitable for transmission bytelestereographic apparatus, the characters and lines upon it should beformed in clean and hard relief, but on the that the ink used'should befluid and capable of drying quickly.

With this ob 'ect an ink is made by incorporating with ordinary inksugar or gum in aqueous solutionand a. highly hygroscopic body, forexample about 30 grams sugar and. 1 gram of magnesium of calciumchloride or the like in 507cc. of water.

Such ink is as fluid as ordinary ink and can beused for writing withoutthe special care which is apt to change the character istic of thewriting of the individual;which is to be recognized such ink moreover.dries as quickly as any ordinary ink. I

The characters are transformed into relief by moistening the ink,sprinklingthe-document with powdered resin or gum which is retained bythe ink, and heating the document up to the melting point-of theresin sothat on cooling the characters will be lacquered, as it were, in'reliefThe char acters in relief thus produced willbe'as sharply defined as theoriginal characters, and will not crumble under the exploring points ofthe telestereographic apparatus so that they can be transmitted and bereproduced "as autographic writing.

Thelacquering should be effected automatically andquickly and alwaysunder. the same conditions. For this'purpose the machine illustrated inthe accompanying draw-. ing is employed.

In the drawing Figure 1 shows the rehumidification compartment A and thesprinkling compartment 13; while Figure),- which is a, continuation ofFigure 1, shows the compartment C-for removing the superfluous powderand the lacquering. compartment D. Figure 3 is a other hand it is.desirablewith exactitudediagrammatic plan showing one means forcontrolling the-magnet circu t.

The documents to be treated are supported in rigid frames whichautomatically and successively pass through the .apparatus from end toend.' These frames 35 may and provided with a conducting surface, as

shown in Figure 3, or if-preferred the frame may be of conductingmateriah j A frame is introduced into compartment A through a windoworslide land is pushed, 6

sired point by a small motor 6, 0 inany 7 other suitable manner.

7 is a tray containing water which is heated' many suitable manner,for'example by electric resistances'8.

The speed at which band 2 is its adhesive properties.

Band 2 maybe formed of largeane'sh fabrictofallow the free passage ofsteam which thus completely, surrounds the docu j ment. 4

On leaving band 2 the frameenterscom I partment' B, being received bya'conveyerj band 9. In its passage, from one bandto the other the framecloses an electriccircuit' by which an electro magnet 10 is energize sothat a pin wheel 11 rotated from apulley 12 on shaft 5'comes beneath aprojection 13 on a x15. iProjectionj 13 will thus be acted on by thepins so long as the frame is 7 upon band 9; the frame'on passing out ofcompartment B breaks the circuitfo'f magnet 10, thus allowing a springltto remove the; 95

pin wheel 11 clear of projection;v 13.1,Tlie

box 15, whichis suspendedfrom springs 16 andhas aperforated bottom 17,jcontains 1 pulverized resin or a fusible gum'. The control of thecircuitt magnet 10 may be effected by any desired, electricalconnection, for instance the frame: 35 carrying the document maybeprovided with a contacting strip 36 disposed .to' be engaged by thecircuit contacts 37 when, the

frame passes onto the conveyer band 9 and;

formedof electrical non-conducting materiat 0 v driven and 75 the degreeto-which the water is heated are 7 so adjusted that the ink in thedocument is completely rehumidified and thus recovers the electro 1 whenthe frame leaves this band the contacts break the circuit to the magnet.r

The shaking of box by the action of the pin wheel causes the powder tobe sprinkled over the document and some of the powder will adhere tothemoist ink.

The band 9 is driven by means of a wheel 19 meshing with a worm 18 onthe shaft 5.

Referring to Figure 2, the sheet is cleaned in compartment G, that is,the superfluous powder is shakenofi so that theonly powder 7. V

ments, the combination of means for'steam 1 retained is that whichadheres to the ink;

The frame is deliverediby' band 9' onto a conveyer band 20' which passesover three pulleys 21, 21". and 22 and so takes a very steep path. Onthe underside of this band arelngs 23 which-are subjected to repeatedblows from arms 24 mountedon oneor more drums 25 also driven by shaft 5.

p The band 20 is not stretched tight and so the, blows against itsunderside will cause the powder to be shaken off the document.

This powder may be collected in a tray at the bottomfof compartment tothe box15. c v,

Thedocument will arrive at the end of compartment 1G with the stillmoist ink C and returned I saturated with powdered'resin, but theremaining portions of the document will be free from resm. .c I

The frame now passes from conveyer band 20' onto conveyer band 26 incompartment D for lacquering. Band -26 is driven by a worm wheel 27rotated fromshaft 5 at a suitable speed. Heating ispreferablyfet fectedelectrically'by resistances 28 so as to avoid any dangerofcarbonizat-ion, and in order that the heating may be progressive andadjustablethe resistance or resistances 28 are mounted upon a grid 29whose angle relatively to the plane of the band 26 may be adjusted by,pivot ng one end of the grid and moving its other end in a slide by ahandle 30; Aspring 31 and roller'may be used to tensionor take up slackin the conink of hydroscopic character, subjecting sa1d method ofdriving the conveyor bands, the

typeof conveyer bands employed, and the heating means employed in thehumidification and enameling compartments. 7 1

Having now particularly described and ascertained the nature of my saidinvention and in what manner the same is to be performed, I declare thatwhat I claim is:

L A. process for producing documents ing the document, means forsprinkling powder thereon, means for shaking off the superfluous powder,means for heating the document, and means for conveying the documentpast the-various stantially as described.

3; In a machine for treatinginked documents, a conveyer band,a springsuspended powder box having a perforated bottom, and

apparatus, submeans for shaking the box during the passage of adocumentupon said band. p

4. A mach1ne according to clann' 2, in which the superfluous powder isremoved by means of lugs on the rotating armshit-f ting a conveyer bandon which the document is supported. v

5. A machineaccordingto claim 2, in

V which heat is applied to the document by means'of electricalresistances carried'bya 7 frame which can be adjusted with respect tonband which supports the documents."

6. The process of producing a document for telestereoscopic transmissionconsisting .inetl ecting an impression thereon with an ink,of'h'ydroscopic character, depositing a powdered substance uponthe'inked surface, removing suchsubstance which does not ad here to theinked lines, and subjecting the powdered lines to a heating medium tosolidify the powder. I i

'7QThe process of producing a document for telestereoscopic'transmission consisting in effecting an impression thereon with andocument toa humidifying action to moisten ment including a steamingpan, means for. siftlng a powderupon the document H101S- tened thereby,means for removing the excess powder compris ng an nclined belt andknocker cooperating therewith, and a heating compartment including acarrier belt and a heating element cooperating there-' with.

10. In a machine for treating documents, the combination of ahumidii'ying compartment including a steaming pan, means for sitting apowder upon the document moistened thereby, means for removing theexcess powder comprising an inclined belt and 10 knocker cooperatingtherewith, a heating compartment including a carrier belt and a heatingelement cooperating therewith, and means for adjusting said elementrelative to the carrier belt.

EDOUARD BELIN.

